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Stuttgart 2012 – scientific programme

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A: Fachverband Atomphysik

A 9: Electron scattering and recombination

A 9.5: Talk

Monday, March 12, 2012, 17:30–17:45, V57.05

Polarimetry of electron beams by means of bremsstrahlung — •Stanislav Tashenov1, Torbjörn Bäck2, Roman Barday3, Bo Cederwall2, Joachim Enders3, Anton Khaplanov2, Yulia Poltoratska3, Kai-Uwe Schässburger2, and Andrey Surzhykov1,41Physikalisches Institut Universität Heidelberg, Germany — 2Royal Institute of Technology, Stockholm, Sweden — 3Institut für Kernphysik, Technische Universität Darmstadt, Germany — 4GSI Helmholtzzentrum für Schwerionenforschung GmbH, Darmstadt, Germany

The dominant photon emission process in electron-atom collisions, bremsstrahlung has long been considered to be sensitive to the spin of the electron [1]. However only recently experimental studies in this direction became possible. The first measurement of the correlation between the orientation of the electron spin and photon linear polarization in bremsstrahlung will be presented [2]. The particular attention will be given to the applications of this technique for polarimetry of electron beams. The results of the proof-of-principle measurement will be presented.

[1] H.K. Tseng and R.H. Pratt PRA 7 (1973) 1502

[2] S. Tashenov et al., PRL 107 (2011) 173201

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